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Test if lists share any items in python
...as such:
bool(set(a) & set(b))
Because sets are stored using a hash table in Python, searching them is O(1) (see here for more information about complexity of operators in Python). Theoretically, this is O(n+m) on average for n and m objects in lists a and b. But 1) it must first create sets ...
CSS Properties: Display vs. Visibility
...lement (i.e. it has height and width properties that you can set, it's floatable, etc), or an inline-block (i.e. it acts like a block box but is laid inline instead) and some others (list-item, table, table-row, table-cell, flex, etc).
When you set an element to display: block but also set visibili...
Using current time in UTC as default value in PostgreSQL
...ded. Just put parentheses around the default expression:
create temporary table test(
id int,
ts timestamp without time zone default (now() at time zone 'utc')
);
share
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improve this ans...
LEFT OUTER joins in Rails 3
... the :include option, which will perform an
INNER JOIN on the associated table(s), or an array containing a
mixture of both strings and named associations.
If the value is a
string, then the records will be returned read-only since they will
have attributes that do not correspond to th...
Does my application “contain encryption”?
...
does anyone know for the table they want us to fill out if we using InMobi SDK(based out of india) if this is considered a non-us-component and non-us-manufactured ?
– isJulian00
Dec 17 '18 at 3:31
...
How can I read and parse CSV files in C++?
...::istream &in) {
std::vector<std::vector<std::string>> table;
std::string row;
while (!in.eof()) {
std::getline(in, row);
if (in.bad() || in.fail()) {
break;
}
auto fields = readCSVRow(row);
table.push_back(fields);
...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
....eclipse.jface.action.IToolBarManager;
5import org.eclipse.jface.viewers.TableViewer;
6import org.eclipse.swt.SWT;
7import org.eclipse.swt.widgets.Composite;
8import org.eclipse.swt.widgets.Label;
9import org.eclipse.swt.widgets.Table;
10import org.eclipse.swt.widgets.Text;
11import org....
Get selected text from a drop-down list (select box) using jQuery
...
Hi how do you do this inside a Table row/cell, how do you know which of the Dropdown from the table, especially in ASP MVC 5
– transformer
Mar 12 '17 at 7:41
...
Understanding Python's “is” operator
...ame integer object which is reused. Works in Python since integers are immutable. If you do x=1.0; y=1.0 or x=9999;y=9999, it won't be the same identity, because floats and larger ints aren't interned.
– Magnus Lyckå
Sep 21 '17 at 13:56
...
What is a “static” function in C?
...) { return 0; }
static int sf() { return 0; }
and disassemble the symbol table with:
readelf -s main.o
the output contains:
Num: Value Size Type Bind Vis Ndx Name
5: 000000000000000b 11 FUNC LOCAL DEFAULT 1 sf
9: 0000000000000000 11 FUNC GLOBAL DEFAULT...